As they say on their website
The Hyperbolic Crochet Coral Reef (HCCR) is a project
by the Institute For Figuring, a non-profit Los-Angeles based
organization that pioneers creative new methods for engaging the public
about scientific and environmental issues by putting people and
communities at the core.
I really like this. I am interested in learning more about science, in a variety of ways, and this is one. I have not participated in this project, but have been having fun with some hyperbolic in smaller ways.
There is a TED X talk about the crochet coral reef project too.